Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2014 The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| 5 | * |
| 6 | * |
| 7 | * Permission to use, copy, modify, and/or distribute this software for |
| 8 | * any purpose with or without fee is hereby granted, provided that the |
| 9 | * above copyright notice and this permission notice appear in all |
| 10 | * copies. |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 13 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 14 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 15 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 16 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 17 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 18 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 19 | * PERFORMANCE OF THIS SOFTWARE. |
| 20 | */ |
| 21 | |
| 22 | /* |
| 23 | * This file was originally distributed by Qualcomm Atheros, Inc. |
| 24 | * under proprietary terms before Copyright ownership was assigned |
| 25 | * to the Linux Foundation. |
| 26 | */ |
| 27 | |
| 28 | /* |
| 29 | * Implementation of the Host-side Host InterFace (HIF) API |
| 30 | * for a Host/Target interconnect using Copy Engines over PCIe. |
| 31 | */ |
| 32 | |
| 33 | #ifndef __HIF_PCI_INTERNAL_H__ |
| 34 | #define __HIF_PCI_INTERNAL_H__ |
| 35 | |
| 36 | #define HIF_PCI_DEBUG ATH_DEBUG_MAKE_MODULE_MASK(0) |
| 37 | #define HIF_PCI_IPA_UC_ASSIGNED_CE 5 |
| 38 | |
| 39 | #if defined(DEBUG) |
| 40 | static ATH_DEBUG_MASK_DESCRIPTION g_hif_debug_description[] = { |
| 41 | {HIF_PCI_DEBUG, "hif_pci"}, |
| 42 | }; |
| 43 | |
| 44 | ATH_DEBUG_INSTANTIATE_MODULE_VAR(hif, "hif", "PCIe Host Interface", |
| 45 | ATH_DEBUG_MASK_DEFAULTS | ATH_DEBUG_INFO, |
| 46 | ATH_DEBUG_DESCRIPTION_COUNT |
| 47 | (g_hif_debug_description), |
| 48 | g_hif_debug_description); |
| 49 | #endif |
| 50 | |
| 51 | #ifdef CONFIG_ATH_PCIE_ACCESS_DEBUG |
| 52 | spinlock_t pcie_access_log_lock; |
| 53 | unsigned int pcie_access_log_seqnum = 0; |
| 54 | HIF_ACCESS_LOG pcie_access_log[PCIE_ACCESS_LOG_NUM]; |
| 55 | static void hif_target_dump_access_log(void); |
| 56 | #endif |
| 57 | |
| 58 | /* |
| 59 | * Host software's Copy Engine configuration. |
| 60 | * This table is derived from the CE_PCI TABLE, above. |
| 61 | */ |
| 62 | #ifdef BIG_ENDIAN_HOST |
| 63 | #define CE_ATTR_FLAGS CE_ATTR_BYTE_SWAP_DATA |
| 64 | #else |
| 65 | #define CE_ATTR_FLAGS 0 |
| 66 | #endif |
| 67 | |
| 68 | /* Maximum number of Copy Engine's supported */ |
| 69 | #define CE_HTT_H2T_MSG_SRC_NENTRIES 2048 |
| 70 | |
| 71 | #define DIAG_CE_ID 7 |
| 72 | #define EPPING_CE_FLAGS_POLL \ |
| 73 | (CE_ATTR_DISABLE_INTR|CE_ATTR_ENABLE_POLL|CE_ATTR_FLAGS) |
| 74 | #ifdef QCA_WIFI_3_0 |
| 75 | static struct CE_attr host_ce_config_wlan[] = { |
| 76 | /* host->target HTC control and raw streams */ |
| 77 | { /* CE0 */ CE_ATTR_FLAGS, 0, 16, 2048, 0, NULL,}, |
| 78 | /* target->host HTT + HTC control */ |
| 79 | { /* CE1 */ CE_ATTR_FLAGS, 0, 0, 2048, 512, NULL,}, |
| 80 | /* target->host WMI */ |
| 81 | { /* CE2 */ CE_ATTR_FLAGS, 0, 0, 2048, 32, NULL,}, |
| 82 | /* host->target WMI */ |
| 83 | { /* CE3 */ CE_ATTR_FLAGS, 0, 32, 2048, 0, NULL,}, |
| 84 | /* host->target HTT */ |
| 85 | { /* CE4 */ (CE_ATTR_FLAGS | CE_ATTR_DISABLE_INTR), 0, |
| 86 | CE_HTT_H2T_MSG_SRC_NENTRIES, 256, 0, NULL,}, |
| 87 | /* ipa_uc->target HTC control */ |
| 88 | { /* CE5 */ (CE_ATTR_FLAGS | CE_ATTR_DISABLE_INTR), 0, |
| 89 | 1024, 512, 0, NULL,}, |
| 90 | /* Target autonomous HIF_memcpy */ |
| 91 | { /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,}, |
| 92 | /* ce_diag, the Diagnostic Window */ |
| 93 | { /* CE7 */ (CE_ATTR_FLAGS | CE_ATTR_DISABLE_INTR), 0, |
| 94 | 2, DIAG_TRANSFER_LIMIT, 2, NULL,}, |
| 95 | }; |
| 96 | |
| 97 | static struct CE_pipe_config target_ce_config_wlan[] = { |
| 98 | /* host->target HTC control and raw streams */ |
| 99 | { /* CE0 */ 0, PIPEDIR_OUT, 32, 2048, CE_ATTR_FLAGS, 0,}, |
| 100 | /* target->host HTT */ |
| 101 | { /* CE1 */ 1, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,}, |
| 102 | /* target->host WMI + HTC control */ |
| 103 | { /* CE2 */ 2, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,}, |
| 104 | /* host->target WMI */ |
| 105 | { /* CE3 */ 3, PIPEDIR_OUT, 32, 2048, CE_ATTR_FLAGS, 0,}, |
| 106 | /* host->target HTT */ |
| 107 | { /* CE4 */ 4, PIPEDIR_OUT, 256, 256, |
| 108 | (CE_ATTR_FLAGS | CE_ATTR_DISABLE_INTR), 0,}, |
| 109 | /* NB: 50% of src nentries, since tx has 2 frags */ |
| 110 | /* ipa_uc->target */ |
| 111 | { /* CE5 */ 5, PIPEDIR_OUT, 1024, 64, |
| 112 | (CE_ATTR_FLAGS | CE_ATTR_DISABLE_INTR), 0,}, |
| 113 | /* Reserved for target autonomous HIF_memcpy */ |
| 114 | { /* CE6 */ 6, PIPEDIR_INOUT, 32, 4096, CE_ATTR_FLAGS, 0,}, |
| 115 | /* CE7 used only by Host */ |
| 116 | { /* CE7 */ 7, PIPEDIR_INOUT_H2H, 0, 0, |
| 117 | (CE_ATTR_FLAGS | CE_ATTR_DISABLE_INTR), 0,}, |
| 118 | /* CE8 used only by IPA */ |
| 119 | { /* CE8 */ 8, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,} |
| 120 | }; |
| 121 | |
| 122 | static struct CE_attr host_ce_config_wlan_epping_poll[] = { |
| 123 | /* host->target HTC control and raw streams */ |
| 124 | { /* CE0 */ CE_ATTR_FLAGS, 0, 16, 2048, 0, NULL,}, |
| 125 | /* target->host EP-ping */ |
| 126 | { /* CE1 */ EPPING_CE_FLAGS_POLL, 0, 0, 2048, 128, NULL,}, |
| 127 | /* target->host EP-ping */ |
| 128 | { /* CE2 */ EPPING_CE_FLAGS_POLL, 0, 0, 2048, 128, NULL,}, |
| 129 | /* host->target EP-ping */ |
| 130 | { /* CE3 */ CE_ATTR_FLAGS, 0, 128, 2048, 0, NULL,}, |
| 131 | /* host->target EP-ping */ |
| 132 | { /* CE4 */ CE_ATTR_FLAGS, 0, 128, 2048, 0, NULL,}, |
| 133 | /* EP-ping heartbeat */ |
| 134 | { /* CE5 */ CE_ATTR_FLAGS, 0, 0, 2048, 128, NULL,}, |
| 135 | /* unused */ |
| 136 | { /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,}, |
| 137 | /* ce_diag, the Diagnostic Window */ |
| 138 | { /* CE7 */ CE_ATTR_FLAGS, 0, 2, DIAG_TRANSFER_LIMIT, 2, NULL,}, |
| 139 | }; |
| 140 | |
| 141 | static struct CE_attr host_ce_config_wlan_epping_irq[] = { |
| 142 | /* host->target HTC control and raw streams */ |
| 143 | { /* CE0 */ CE_ATTR_FLAGS, 0, 16, 2048, 0, NULL,}, |
| 144 | /* target->host EP-ping */ |
| 145 | { /* CE1 */ CE_ATTR_FLAGS, 0, 0, 2048, 128, NULL,}, |
| 146 | /* target->host EP-ping */ |
| 147 | { /* CE2 */ CE_ATTR_FLAGS, 0, 0, 2048, 128, NULL,}, |
| 148 | /* host->target EP-ping */ |
| 149 | { /* CE3 */ CE_ATTR_FLAGS, 0, 128, 2048, 0, NULL,}, |
| 150 | /* host->target EP-ping */ |
| 151 | { /* CE4 */ CE_ATTR_FLAGS, 0, 128, 2048, 0, NULL,}, |
| 152 | /* EP-ping heartbeat */ |
| 153 | { /* CE5 */ CE_ATTR_FLAGS, 0, 0, 2048, 128, NULL,}, |
| 154 | /* unused */ |
| 155 | { /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,}, |
| 156 | /* ce_diag, the Diagnostic Window */ |
| 157 | { /* CE7 */ CE_ATTR_FLAGS, 0, 2, DIAG_TRANSFER_LIMIT, 2, NULL,}, |
| 158 | }; |
| 159 | /* |
| 160 | * EP-ping firmware's CE configuration |
| 161 | */ |
| 162 | static struct CE_pipe_config target_ce_config_wlan_epping[] = { |
| 163 | /* host->target HTC control and raw streams */ |
| 164 | { /* CE0 */ 0, PIPEDIR_OUT, 16, 2048, CE_ATTR_FLAGS, 0,}, |
| 165 | /* target->host EP-ping */ |
| 166 | { /* CE1 */ 1, PIPEDIR_IN, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 167 | /* target->host EP-ping */ |
| 168 | { /* CE2 */ 2, PIPEDIR_IN, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 169 | /* host->target EP-ping */ |
| 170 | { /* CE3 */ 3, PIPEDIR_OUT, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 171 | /* host->target EP-ping */ |
| 172 | { /* CE4 */ 4, PIPEDIR_OUT, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 173 | /* EP-ping heartbeat */ |
| 174 | { /* CE5 */ 5, PIPEDIR_IN, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 175 | /* unused */ |
| 176 | { /* CE6 */ 6, PIPEDIR_INOUT, 0, 0, CE_ATTR_FLAGS, 0,}, |
| 177 | /* CE7 used only by Host */ |
| 178 | { /* CE7 */ 7, PIPEDIR_INOUT_H2H, 0, 0, 0, 0,}, |
| 179 | /* CE8 used only by IPA */ |
| 180 | { /* CE8 */ 8, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,} |
| 181 | }; |
| 182 | #else |
| 183 | static struct CE_attr host_ce_config_wlan[] = { |
| 184 | /* host->target HTC control and raw streams */ |
| 185 | { /* CE0 */ CE_ATTR_FLAGS, 0, 16, 256, 0, NULL,}, |
| 186 | /* target->host HTT + HTC control */ |
| 187 | { /* CE1 */ CE_ATTR_FLAGS, 0, 0, 2048, 512, NULL,}, |
| 188 | /* target->host WMI */ |
| 189 | { /* CE2 */ CE_ATTR_FLAGS, 0, 0, 2048, 32, NULL,}, |
| 190 | /* host->target WMI */ |
| 191 | { /* CE3 */ CE_ATTR_FLAGS, 0, 32, 2048, 0, NULL,}, |
| 192 | /* host->target HTT */ |
| 193 | { /* CE4 */ CE_ATTR_FLAGS | CE_ATTR_DISABLE_INTR, 0, |
| 194 | CE_HTT_H2T_MSG_SRC_NENTRIES, 256, 0, NULL,}, |
| 195 | /* ipa_uc->target HTC control */ |
| 196 | { /* CE5 */ CE_ATTR_FLAGS | CE_ATTR_DISABLE_INTR, 0, |
| 197 | 1024, 512, 0, NULL,}, |
| 198 | /* Target autonomous HIF_memcpy */ |
| 199 | { /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,}, |
| 200 | /* ce_diag, the Diagnostic Window */ |
| 201 | { /* CE7 */ CE_ATTR_FLAGS | CE_ATTR_DISABLE_INTR, |
| 202 | 0, 2, DIAG_TRANSFER_LIMIT, 2, NULL,}, |
| 203 | }; |
| 204 | |
| 205 | static struct CE_pipe_config target_ce_config_wlan[] = { |
| 206 | /* host->target HTC control and raw streams */ |
| 207 | { /* CE0 */ 0, PIPEDIR_OUT, 32, 256, CE_ATTR_FLAGS, 0,}, |
| 208 | /* target->host HTT + HTC control */ |
| 209 | { /* CE1 */ 1, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,}, |
| 210 | /* target->host WMI */ |
| 211 | { /* CE2 */ 2, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,}, |
| 212 | /* host->target WMI */ |
| 213 | { /* CE3 */ 3, PIPEDIR_OUT, 32, 2048, CE_ATTR_FLAGS, 0,}, |
| 214 | /* host->target HTT */ |
| 215 | { /* CE4 */ 4, PIPEDIR_OUT, 256, 256, CE_ATTR_FLAGS, 0,}, |
| 216 | /* NB: 50% of src nentries, since tx has 2 frags */ |
| 217 | /* ipa_uc->target HTC control */ |
| 218 | { /* CE5 */ 5, PIPEDIR_OUT, 1024, 64, CE_ATTR_FLAGS, 0,}, |
| 219 | /* Reserved for target autonomous HIF_memcpy */ |
| 220 | { /* CE6 */ 6, PIPEDIR_INOUT, 32, 4096, CE_ATTR_FLAGS, 0,}, |
| 221 | /* CE7 used only by Host */ |
| 222 | { /* CE7 */ 7, PIPEDIR_INOUT_H2H, 0, 0, 0, 0,}, |
| 223 | /* CE8 used only by IPA */ |
| 224 | { /* CE8 */ 8, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,} |
| 225 | }; |
| 226 | |
| 227 | static struct CE_attr host_ce_config_wlan_epping_poll[] = { |
| 228 | /* host->target HTC control and raw streams */ |
| 229 | { /* CE0 */ CE_ATTR_FLAGS, 0, 16, 256, 0, NULL,}, |
| 230 | /* target->host EP-ping */ |
| 231 | { /* CE1 */ EPPING_CE_FLAGS_POLL, 0, 0, 2048, 128, NULL,}, |
| 232 | /* target->host EP-ping */ |
| 233 | { /* CE2 */ EPPING_CE_FLAGS_POLL, 0, 0, 2048, 128, NULL,}, |
| 234 | /* host->target EP-ping */ |
| 235 | { /* CE3 */ CE_ATTR_FLAGS, 0, 128, 2048, 0, NULL,}, |
| 236 | /* host->target EP-ping */ |
| 237 | { /* CE4 */ CE_ATTR_FLAGS, 0, 128, 2048, 0, NULL,}, |
| 238 | /* EP-ping heartbeat */ |
| 239 | { /* CE5 */ CE_ATTR_FLAGS, 0, 0, 2048, 128, NULL,}, |
| 240 | /* unused */ |
| 241 | { /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,}, |
| 242 | /* ce_diag, the Diagnostic Window */ |
| 243 | { /* CE7 */ CE_ATTR_FLAGS, 0, 2, DIAG_TRANSFER_LIMIT, 2, NULL,}, |
| 244 | }; |
| 245 | static struct CE_attr host_ce_config_wlan_epping_irq[] = { |
| 246 | /* host->target HTC control and raw streams */ |
| 247 | { /* CE0 */ CE_ATTR_FLAGS, 0, 16, 256, 0, NULL,}, |
| 248 | /* target->host EP-ping */ |
| 249 | { /* CE1 */ CE_ATTR_FLAGS, 0, 0, 2048, 128, NULL,}, |
| 250 | /* target->host EP-ping */ |
| 251 | { /* CE2 */ CE_ATTR_FLAGS, 0, 0, 2048, 128, NULL,}, |
| 252 | /* host->target EP-ping */ |
| 253 | { /* CE3 */ CE_ATTR_FLAGS, 0, 128, 2048, 0, NULL,}, |
| 254 | /* host->target EP-ping */ |
| 255 | { /* CE4 */ CE_ATTR_FLAGS, 0, 128, 2048, 0, NULL,}, |
| 256 | /* EP-ping heartbeat */ |
| 257 | { /* CE5 */ CE_ATTR_FLAGS, 0, 0, 2048, 128, NULL,}, |
| 258 | /* unused */ |
| 259 | { /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,}, |
| 260 | /* ce_diag, the Diagnostic Window */ |
| 261 | { /* CE7 */ CE_ATTR_FLAGS, 0, 2, DIAG_TRANSFER_LIMIT, 2, NULL,}, |
| 262 | }; |
| 263 | /* |
| 264 | * EP-ping firmware's CE configuration |
| 265 | */ |
| 266 | static struct CE_pipe_config target_ce_config_wlan_epping[] = { |
| 267 | /* host->target HTC control and raw streams */ |
| 268 | { /* CE0 */ 0, PIPEDIR_OUT, 16, 256, CE_ATTR_FLAGS, 0,}, |
| 269 | /* target->host EP-ping */ |
| 270 | { /* CE1 */ 1, PIPEDIR_IN, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 271 | /* target->host EP-ping */ |
| 272 | { /* CE2 */ 2, PIPEDIR_IN, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 273 | /* host->target EP-ping */ |
| 274 | { /* CE3 */ 3, PIPEDIR_OUT, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 275 | /* host->target EP-ping */ |
| 276 | { /* CE4 */ 4, PIPEDIR_OUT, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 277 | /* EP-ping heartbeat */ |
| 278 | { /* CE5 */ 5, PIPEDIR_IN, 128, 2048, CE_ATTR_FLAGS, 0,}, |
| 279 | /* unused */ |
| 280 | { /* CE6 */ 6, PIPEDIR_INOUT, 0, 0, CE_ATTR_FLAGS, 0,}, |
| 281 | /* CE7 used only by Host */ |
| 282 | { /* CE7 */ 7, PIPEDIR_INOUT_H2H, 0, 0, 0, 0,}, |
| 283 | /* CE8 used only by IPA */ |
| 284 | { /* CE8 */ 8, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,} |
| 285 | }; |
| 286 | #endif |
| 287 | |
| 288 | static struct CE_attr *host_ce_config = host_ce_config_wlan; |
| 289 | static struct CE_pipe_config *target_ce_config = target_ce_config_wlan; |
| 290 | static int target_ce_config_sz = sizeof(target_ce_config_wlan); |
| 291 | #endif /* __HIF_PCI_INTERNAL_H__ */ |